Angle-adjustable solar photovoltaic support and solar power generation structure thereof

Abstract

The invention discloses an angle-adjustable solar photovoltaic support and a solar power generation structure thereof. The support comprises a support base, a main supporting rod, a photovoltaic frame and an inclination angle adjusting structure. An innovative dip angle supporting structure is arranged between the photovoltaic frame and the support base and is composed of a supporting arm and an arc-shaped supporting guide rail, one end of the supporting arm is perpendicularly fixed to the photovoltaic frame, and the other end of the supporting arm is matched with the arc-shaped supporting guide rail through a sliding part. The arc-shaped supporting guide rail is fixed to the support base through the supporting column, the extending track of the arc-shaped supporting guide rail enables the included angle alpha between the supporting arm and the base to be continuously reduced from larger than 80 degrees to smaller than 10 degrees when the dip angle of the photovoltaic frame is adjusted, meanwhile, the dip angle theta of the photovoltaic frame is increased from smaller than 10 degrees to larger than 80 degrees, and self-adaptive adjustment of the dip angle is achieved. And the solar power generation structure comprises a solar panel fixed in the photovoltaic frame. According to the design, through linkage cooperation of the supporting arms and the guide rails, stable torque is automatically generated under the large-dip-angle working condition, and the wind resistance and adjusting stability of the support are remarkably improved.

Description

Technical Field

[0001] The present invention relates to the field of solar photovoltaic brackets, and specifically, to an angle-adjustable solar photovoltaic bracket and its solar power generation structure. Background Art

[0002] As a key supporting structure of a photovoltaic power generation system, solar photovoltaic brackets are widely used in unobstructed scenarios such as flat ground, deserts, and grasslands to ensure that the photovoltaic panels obtain the best lighting angle. Such scenarios are usually open and have sufficient sunlight, but at the same time, they are vulnerable to strong winds due to the lack of natural barriers. Especially in seasonal strong winds or extreme weather conditions, the brackets need to bear significant wind loads. Existing brackets mainly include two types: fixed and adjustable. Among them, the adjustable brackets adapt to the change of the solar altitude angle by changing the inclination angle of the photovoltaic panels. However, their structural design often gives priority to the convenience of adjustment, and the optimization of wind resistance performance is insufficient.

[0003] When the existing adjustable brackets are adjusted to a large inclination angle, the windward area of the photovoltaic panels increases significantly, resulting in a substantial increase in the wind load moment. Especially when the inclination angle exceeds 30°, the bending resistance of the support structure of the bracket faces a severe test, and problems such as deformation of the support rods, loosening of the hinge points, and even overall overturning are likely to occur. Moreover, the traditional brackets lack a wind load adaptive mechanism and cannot dynamically adjust the wind resistance according to the change of the inclination angle, resulting in the need for manual intervention to reduce the inclination angle in extreme weather, which affects the power generation efficiency. Summary of the Invention

[0004] The main object of the present invention is to provide an angle-adjustable solar photovoltaic bracket and its solar power generation structure, aiming to automatically enhance the wind resistance stability under different inclination angle conditions by optimizing the mechanical structure of the bracket.

[0005] The technical solution of the present invention is as follows: An angle-adjustable solar photovoltaic bracket includes a bracket base, a main support rod, a photovoltaic frame, and an inclination angle adjustment structure. The main support rod is fixedly connected to the bracket base. The inclination angle adjustment structure is located between the main support rod and the photovoltaic frame. An inclination angle support structure is provided between the photovoltaic frame and the bracket base. The inclination angle support structure includes a support arm and an arc-shaped support guide rail. One end of the support arm is fixedly connected to one side of the photovoltaic frame. The support arm is perpendicular to the photovoltaic frame. The other end of the support arm is provided with a sliding part that cooperates with the arc-shaped support guide rail. The arc-shaped support guide rail is fixed to the bracket base by at least one support column. And the extension trajectory of the arc-shaped support guide rail is: when the photovoltaic frame rotates around the main support rod to adjust the inclination angle, the sliding part slides along the arc-shaped support guide rail, so that the included angle α between the support arm and the bracket base continuously decreases from greater than 80° to less than 10°, and at the same time, the inclination angle θ of the photovoltaic frame increases from less than 10° to greater than 80°.

[0006] In a possible implementation, the sliding part includes a rolling component and an axial limiting structure; The rolling component includes at least one rotatable rolling body, and the axial limiting structure is used to prevent the rolling body from disengaging from the arc-shaped support guide rail; The cross-section of the arc-shaped support guide rail is provided with a limiting groove recessed inward, and the limiting groove and the axial limiting structure cooperate to form a radial constraint.

[0007] In a possible implementation, the axial limiting structure includes a pin shaft passing through the rolling body, and the pin shaft extends into the limiting groove to prevent the rolling body from falling out of the arc-shaped support guide rail.

[0008] In a possible implementation, a stabilizing component is provided on one side of the support arm, and the stabilizing component is used to provide gravity for the support arm towards the bracket base, and as the included angle α between the support arm and the bracket base becomes smaller, its center of gravity gets closer to the middle of the support arm.

[0009] In a possible implementation, the stabilizing component includes a sliding track and a counterweight. The sliding track is located inside the support arm. The sliding track extends from the middle of the support arm to one end of the support arm close to the arc-shaped support guide rail. The extending direction of the sliding track forms an acute angle β with the axis of the support arm. The counterweight is located inside the sliding track and is slidably connected to the sliding track. When the included angle α between the support arm and the bracket base decreases, the counterweight gradually moves towards the middle of the support arm under the action of gravity.

[0010] In a possible implementation, a traction component is connected between the counterweight and the arc-shaped support guide rail. The traction component is used to apply an additional pulling force towards the bracket base to the counterweight when the included angle between the support arm and the bracket base becomes smaller. The additional pulling force applied by the traction component to the counterweight is the largest when the included angle α between the support arm and the bracket base reaches the set minimum.

[0011] In a possible implementation, the traction component includes a traction rope and a spring-loaded automatic rewinding mechanism. The spring-loaded automatic rewinding mechanism is fixed at the front end of the arc-shaped support guide rail. The front end of the arc-shaped support guide rail refers to the end where the included angle α between the support arm and the bracket base continuously increases when the support arm moves towards this end. One end of the traction rope is fixed to the spring-loaded automatic rewinding mechanism and wound around the spring-loaded automatic rewinding mechanism, and the other end of the traction rope is connected to the counterweight.

[0012] In a possible implementation, there are several support columns, and the included angle γ between the support columns at different positions and the bracket base satisfies that when the support arm moves, the included angle γ between the corresponding support column and the bracket base decreases as the included angle α between the support arm and the bracket base decreases, and the range of the included angle γ between the support column and the bracket base is 30° to 90°.

[0013] A solar power generation structure includes the solar photovoltaic bracket as described in any one of the above. A solar panel is fixed inside the photovoltaic frame, and the solar panel converts light energy into electrical energy.

[0014] The working principle and beneficial effects of the present invention are as follows: The technical solution of the present invention realizes stable adjustment of the inclination angle of the photovoltaic frame through the linkage design of the support arm and the arc-shaped support guide rail. One end of the support arm is fixedly connected to the photovoltaic frame and maintains a vertical relationship, and the other end is dynamically matched with the arc-shaped support guide rail through a sliding part. The arc-shaped support guide rail is fixed to the bracket base through the support column and through its own specific extension trajectory, so that when the photovoltaic frame rotates around the main support rod to adjust the inclination angle, the included angle α between the support arm and the bracket base continuously decreases from greater than 80° to less than 10°, while the inclination angle θ of the photovoltaic frame increases from less than 10° to greater than 80°. During this movement process, the sliding of the support arm along the guide rail generates an adaptive anti-overturning moment, and the extension trajectory of the arc-shaped support guide rail and the arrangement of the support columns jointly form a progressive support force distribution, enhancing the structural rigidity through geometric constraints when the photovoltaic frame is in a large inclination angle state, thereby realizing dynamic stability during the inclination angle adjustment process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0016] Figure 1 It is a schematic structural diagram of the solar photovoltaic bracket in Embodiment 1 and the solar power generation structure in Embodiment 2; Figure 2 It is a side view of the solar photovoltaic bracket in Embodiment 1; Figure 3 It is a schematic structural diagram of the solar photovoltaic bracket in Embodiment 1 and the solar power generation structure in Embodiment 2 after angle adjustment; Figure 4 It is a side view of the solar photovoltaic bracket in Embodiment 1 after angle adjustment; Figure 5 It is an internal structural diagram of the arc-shaped support guide rail in Embodiment 1.

[0017] Description of the attached reference numerals: 1. Bracket base; 2. Main support rod; 3. Photovoltaic frame; 4. Inclination adjustment structure; 5. Inclination support structure; 6. Sliding part; 7. Stabilizing component; 8. Traction component; 51. Support arm; 52. Arc-shaped support guide rail; 53. Support column; 54. Limit groove; 61. Rolling body; 62. Pin shaft; 71. Sliding track; 72. Counterweight; 81. Traction rope; 82. Spring-rolled automatic rewinding mechanism; 100. Solar panel.

[0018] The realization, functional features and advantages of the object of the present invention will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0019] In order to make the object, technical solution and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application. Embodiment 1

[0020] As Figures 1 to 5 shown, this embodiment provides a solar photovoltaic bracket with adjustable angle, including a bracket base 1, a main support rod 2, a photovoltaic frame 3, and an inclination adjustment structure 4. The main support rod 2 is fixedly connected to the bracket base 1. The inclination adjustment structure 4 is located between the main support rod 2 and the photovoltaic frame 3. An inclination support structure 5 is provided between the photovoltaic frame 3 and the bracket base 1; The inclination support structure 5 includes a support arm 51 and an arc-shaped support guide rail 52. One end of the support arm 51 is fixedly connected to one side of the photovoltaic frame 3. The support arm 51 is perpendicular to the photovoltaic frame 3. The other end of the support arm 51 is provided with a sliding part 6 that cooperates with the arc-shaped support guide rail 52. The arc-shaped support guide rail 52 is fixed to the bracket base 1 by at least one support column 53. The extension trajectory of the arc-shaped support guide rail 52 is: when the photovoltaic frame 3 rotates around the main support rod 2 to adjust the inclination angle, the sliding part 6 slides along the arc-shaped support guide rail 52, so that the included angle α between the support arm 51 and the bracket base 1 continuously decreases from greater than 80° to less than 10°, and at the same time, the inclination angle θ of the photovoltaic frame 3 increases from less than 10° to greater than 80°.

[0021] The bracket base 1 serves as the installation foundation of the entire bracket system. The bracket base 1 provides a stable support platform by fixedly connecting to the main support rod 2. Its firm connection to the ground ensures the overall structural stability of the bracket in various inclination states, effectively reducing the displacement risk caused by wind loads or self-weight. The main support rod 2, as the core load-bearing member, forms a rigid support framework by fixedly connecting to the bracket base 1 and the photovoltaic frame 3 at its upper and lower ends respectively. It bears the main bending moment and shear force during the inclination adjustment process, significantly enhancing the anti-deformation ability of the bracket. The photovoltaic frame 3 directly bears the photovoltaic modules and maintains their installation plane. Its perpendicular fixed connection to the support arm 51 ensures that the photovoltaic panels are always in the best stress state, reducing the panel distortion deformation through a rigid structure design. The inclination adjustment structure 4 provided between the main support rod 2 and the photovoltaic frame 3 provides a controllable rotational freedom, enabling the photovoltaic frame 3 to precisely change the inclination angle around the axis of the main support rod 2, realizing flexible adjustment of the illumination angle. In this embodiment, a hydraulic push rod can be used as the inclination adjustment structure 4. The cylinder end of the hydraulic push rod is hinged to the middle part of the main support rod 2, and the piston rod end is hinged to the back of the photovoltaic frame 3. By controlling the telescopic movement of the piston rod through a hydraulic system, the photovoltaic frame 3 is driven to rotate around the main support rod 2 to achieve inclination adjustment. An electric lead screw mechanism, a worm and worm gear transmission mechanism, or a gear and rack mechanism driven by a servo motor can also be used to achieve inclination adjustment. The hydraulic push rod, electric lead screw, worm and worm gear, and gear and rack driven by a servo motor are all prior arts, and their specific internal structures and working methods are not elaborated in this embodiment. Since the inclination adjustment structure 4 is not the improvement point of this application, only the most basic composition of the inclination adjustment structure 4 is shown in the specification drawings. One end of the support arm 51 is vertically fixed to the photovoltaic frame 3, and the other end is slidably connected to the guide rail, converting the inclination change of the photovoltaic frame 3 into a linear movement along the guide rail. Its rigid structure design continuously transmits the support force during the adjustment process, effectively balancing the wind load moment. The arc-shaped support guide rail 52 restricts the movement path of the sliding part 6 of the support arm 51 through a preset extension trajectory. Its curvature design enables the angle change between the support arm 51 and the bracket base 1 to form a reverse linkage with the inclination angle of the photovoltaic frame 3, automatically enhancing the wind resistance stability when the inclination angle increases. The sliding part 6, as the interaction interface between the support arm 51 and the guide rail, realizes the smooth displacement of the support arm 51 along the guide rail through low-friction movement. Its close-fitting design ensures the structural coherence during the inclination adjustment process, avoiding shaking or jamming. The support column 53 is fixedly connected to the arc-shaped support guide rail 52 and the bracket base 1. The way of arranging multiple support columns at intervals forms a distributed support for the guide rail, reducing the risk of local deformation of the guide rail by optimizing the force transmission path and increasing the overall structural reliability of the bracket under strong wind conditions.

[0022] In this embodiment, the sliding part 6 includes a rolling component and an axial limiting structure; The rolling component includes at least one rotatable rolling body 61, and the axial limiting structure is used to prevent the rolling body 61 from disengaging from the arc-shaped support guide rail 52; The cross-section of the arc-shaped support guide rail 52 is provided with a limiting groove 54 that is recessed inward. The limiting groove 54 cooperates with the axial limiting structure to form a radial constraint.

[0023] The rolling assembly realizes low-friction relative movement between the support arm 51 and the arc-shaped support guide rail 52 through the rotatable rolling body 61. Its rolling contact method significantly reduces the sliding resistance, making the inclination adjustment operation of the photovoltaic frame 3 smoother and more labor-saving. At the same time, it reduces mechanical wear and extends the service life of the support arm 51, the arc-shaped support guide rail 52, and the rolling assembly. The axial limiting structure prevents the rolling body 61 from accidentally falling out of the arc-shaped support guide rail 52 through physical constraints, ensuring that the support arm 51 can still maintain a reliable connection with the guide rail under extreme wind loads or vibration conditions, and improving the operating safety of the support system in harsh environments. The inwardly recessed limiting groove 54 on the arc-shaped support guide rail 52 and the axial limiting structure form a complementary radial constraint system. By geometric cooperation, it restricts the lateral displacement of the rolling body 61, effectively controls the swing amplitude of the support arm 51 during movement, and increases the stability of the inclination adjustment process. The radial constraint system composed of the limiting groove 54 and the axial limiting structure ensures the smooth movement of the support arm 51 along the predetermined trajectory by bi-directionally restricting the movement freedom of the rolling body 61, prevents movement deviation caused by lateral force, and improves the inclination positioning accuracy.

[0024] In this embodiment, the axial limiting structure includes a pin shaft 62 passing through the rolling body 61. The pin shaft 62 extends into the limiting groove 54 to prevent the rolling body 61 from falling out of the arc-shaped support guide rail 52.

[0025] The axial limiting structure forms a mechanical lock through the pin shaft 62 passing through the rolling body 61. The design that both ends of the pin shaft 62 extend and are embedded in the limiting groove 54 forms a double anti-detachment protection. This structure always maintains a reliable connection between the rolling body 61 and the guide rail during the movement of the support arm 51, effectively preventing the rolling body 61 from accidentally detaching under extreme working conditions, significantly improving the safety and reliability of the support system. At the same time, the rigid constraint of the pin shaft 62 can reduce the displacement deviation of the rolling body 61 in a vibrating environment, ensuring the accuracy of inclination adjustment.

[0026] In this embodiment, a stabilizing component 7 is provided on one side of the support arm 51. The stabilizing component 7 is used to provide gravity towards the support base 1 for the support arm 51, and as the included angle α between the support arm 51 and the support base 1 decreases, its center of gravity gets closer to the middle of the support arm 51. The stabilizing component 7 includes a sliding track 71 and a counterweight 72. The sliding track 71 is located inside the support arm 51 and extends from the middle of the support arm 51 to one end of the support arm 51 close to the arc-shaped support guide 52. The extending direction of the sliding track 71 forms an acute angle β with the axis of the support arm 51. The counterweight 72 is located inside the sliding track 71 and is slidably connected to the sliding track 71. When the included angle α between the support arm 51 and the support base 1 decreases, the counterweight 72 gradually moves towards the middle of the support arm 51 under the action of gravity.

[0027] The stabilizing component 7 provides a dynamic balance force for the support arm 51 through the action of gravity, automatically adjusts the position of the counterweight as the inclination angle of the support arm 51 changes, moves the center of gravity towards the middle of the support arm 51 when the included angle between the support arm 51 and the support base 1 decreases, thereby generating a stabilizing moment in the opposite direction to the overturning moment, effectively enhancing the wind resistance of the bracket in the large-inclination state, and at the same time reducing the need for manual intervention. The sliding track 71 is arranged inside the support arm 51 at a specific inclination angle, providing a guiding movement path for the counterweight 72. The acute angle β formed between it and the axis of the support arm 51 is designed to ensure that the counterweight 72 can slide automatically with the change of the inclination angle, making the gravity compensation effect linked to the angle change of the support arm 51 and enhancing the adaptive stability of the bracket. The counterweight 72 moves freely inside the sliding track 71, generating a variable moment through its own gravity. When the angle of the support arm 51 decreases, it slides towards the middle under the action of the gravity component, dynamically adjusting the position of the center of gravity, increasing the ability of the bracket to resist overturning, and at the same time avoiding the reliability problems brought by using complex mechanical structures. The acute angle β formed between the sliding track 71 and the axis of the support arm 51 makes the moving direction of the counterweight 72 form the best mechanical relationship with the direction of gravity, ensuring that the counterweight 72 can produce the expected displacement effect with the change of the inclination angle, optimizing the gravity compensation efficiency, and enhancing the stability performance of the bracket at different inclination angles.

[0028] In this embodiment, a traction assembly 8 is connected between the counterweight 72 and the arc-shaped support guide rail 52. The traction assembly 8 is used to apply an additional pulling force towards the support base 1 to the counterweight 72 when the angle between the support arm 51 and the support base 1 becomes smaller. The additional pulling force applied by the traction assembly 8 to the counterweight 72 is the largest when the angle α between the support arm 51 and the support base 1 reaches the set minimum. The traction assembly 8 includes a traction rope 81 and a spring-loaded automatic rewinding mechanism 82. The spring-loaded automatic rewinding mechanism 82 is fixed at the front end of the arc-shaped support guide rail 52. The front end of the arc-shaped support guide rail 52 refers to the end where the angle α between the support arm 51 and the support base 1 continuously increases when the support arm 51 moves towards this end. One end of the traction rope 81 is fixed to and wound around the spring-loaded automatic rewinding mechanism 82, and the other end of the traction rope 81 is connected to the counterweight 72.

[0029] The traction assembly 8 applies an additional pulling force to the counterweight 72 through mechanical linkage when the angle of the support arm 51 decreases, and provides the maximum pulling force when the angle α reaches the minimum, forming a composite stable system that synergistically acts with gravity, further enhancing the wind resistance of the bracket in the extreme inclination state, and at the same time ensuring a smooth transition during the angle adjustment process. The traction rope 81 serves as a force transmission medium to connect the spring mechanism and the counterweight 72. Its flexible characteristic allows the counterweight 72 to freely move within the sliding track 71 while transmitting the pulling force, and keeps a continuous tension state when the angle of the support arm 51 changes, ensuring that the additional pulling force can effectively act on the counterweight 72. The spring-loaded automatic rewinding mechanism 82 fixed at the front end of the arc-shaped support guide rail 52 automatically adjusts the length of the traction rope 81 through the pre-tightening force, gradually releases the stored elastic potential energy when the angle of the support arm 51 decreases, and converts it into an additional pulling force on the counterweight 72, realizing the adaptive force compensation with the change of the angle. The pulling force adjustment system composed of the traction rope 81 and the spring mechanism, through the cooperation of the pre-tightening force setting and the winding and unwinding mechanism, ensures that the additional pulling force increases as the angle of the support arm 51 decreases, provides the maximum stable torque at the extreme position, and optimizes the overall stability performance of the bracket at different inclination angles.

[0030] In this embodiment, a plurality of support columns 53 are provided. The angle γ between the support columns 53 at different positions and the support base 1 satisfies that when the support arm 51 moves, the angle γ between the corresponding support column 53 and the support base 1 becomes smaller as the angle α between the support arm 51 and the support base 1 becomes smaller. The range of the angle γ between the support column 53 and the support base 1 is 30° to 90°.

[0031] The support columns 53 are arranged at multiple different angles to form a gradient support structure. The included angle γ between the support columns 53 and the support base 1 changes correspondingly as the angle α of the support arm 51 decreases. This dynamic angle matching design makes the support force distribution more reasonable, effectively disperses the bending moment borne by the arc-shaped support guide rail 52, improves the overall structural strength of the support, and at the same time reduces the risk of local stress concentration. The angle of each support column 53 gradually changes within the range of 30° to 90°, forming a support network that matches the movement trajectory of the support arm 51, ensuring that the optimal support effect can be obtained during the full-stroke movement of the support arm 51, enhancing the stability of the support under different inclination angles, and reducing the possibility of structural deformation. Embodiment 2

[0032] As Figure 1 、 Figure 3 shown, this embodiment proposes a solar power generation structure, including the solar photovoltaic support as described in any one of the above. A solar panel 100 is fixed inside the photovoltaic frame 3, and the solar panel 100 converts light energy into electrical energy.

[0033] By fixing the solar panel 100 inside the photovoltaic frame 3, an integrated system is formed between the photovoltaic power generation unit and the support structure. The angle adjustment function of the support is used to optimize the light-receiving angle of the solar panel 100, improve the light energy conversion efficiency, and at the same time maintain the structural compactness and environmental adaptability of the power generation equipment. The collaborative design of the solar panel 100 and the adjustable support realizes the organic integration of the power generation unit and the support structure, enables the solar panel 100 to make full use of the inclination angle adjustment function of the support to obtain the best lighting conditions, improves the energy collection efficiency, and at the same time simplifies the system installation and maintenance process.

[0034] In the drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components; in the description of this application, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only for illustrative purposes and cannot be understood as a limitation of this application. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0035] The above are only the preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of this application should be included in the protection scope of this application.

Claims

1. An angle-adjustable solar photovoltaic bracket, comprising a bracket base (1), a main support rod (2), a photovoltaic frame (3), and an inclination angle adjustment structure (4). The main support rod (2) is fixedly connected to the bracket base (1), and the inclination angle adjustment structure (4) is located between the main support rod (2) and the photovoltaic frame (3), characterized in that, An inclination angle support structure (5) is provided between the photovoltaic frame (3) and the support base (1); The inclination angle support structure (5) includes a support arm (51) and an arc-shaped support guide rail (52). One end of the support arm (51) is fixedly connected to one side of the photovoltaic frame (3). The support arm (51) is perpendicular to the photovoltaic frame (3). The other end of the support arm (51) is provided with a sliding part (6) that cooperates with the arc-shaped support guide rail (52). The arc-shaped support guide rail (52) is fixed to the support base (1) through at least one support column (53). The extension trajectory of the arc-shaped support guide rail (52) is as follows: when the photovoltaic frame (3) rotates around the main support rod (2) to adjust the inclination angle, the sliding part (6) slides along the arc-shaped support guide rail (52), so that the included angle α between the support arm (51) and the support base (1) continuously decreases from greater than 80° to less than 10°, and at the same time, the inclination angle θ of the photovoltaic frame (3) increases from less than 10° to greater than 80°.

2. The angle-adjustable solar photovoltaic bracket according to claim 1, wherein The sliding part (6) includes a rolling component and an axial limiting structure; The rolling component includes at least one rotatable rolling body (61), and the axial limiting structure is used to prevent the rolling body (61) from disengaging from the arc-shaped support guide rail (52); The cross-section of the arc-shaped support guide rail (52) is provided with an inwardly concave limiting groove (54), and the limiting groove (54) cooperates with the axial limiting structure to form a radial constraint.

3. The angle-adjustable solar photovoltaic bracket according to claim 2, wherein The axial limiting structure includes a pin shaft (62) passing through the rolling body (61), and the pin shaft (62) extends into the limiting groove (54) to prevent the rolling body (61) from falling off from the arc-shaped support guide rail (52).

4. The angle-adjustable solar photovoltaic bracket according to claim 1, characterized in that, A stabilizing component (7) is provided on one side of the support arm (51), and the stabilizing component (7) is used to provide gravity for the support arm (51) towards the support base (1), and as the included angle α between the support arm (51) and the support base (1) becomes smaller, its center of gravity gets closer to the middle of the support arm (51).

5. The angle-adjustable solar photovoltaic support according to claim 4, wherein The stabilizing component (7) includes a sliding track (71) and a counterweight (72). The sliding track (71) is located inside the support arm (51). The sliding track (71) extends from the middle of the support arm (51) to one end of the support arm (51) close to the arc-shaped support guide rail (52). The extension direction of the sliding track (71) forms an acute angle β with the axis of the support arm (51). The counterweight (72) is located in the sliding track (71), and the counterweight (72) is slidably connected to the sliding track (71). When the included angle α between the support arm (51) and the support base (1) decreases, the counterweight (72) gradually moves towards the middle of the support arm (51) under the action of gravity.

6. The angle-adjustable solar photovoltaic bracket according to claim 5, characterized in that A traction component (8) is connected between the counterweight (72) and the arc-shaped support guide rail (52). The traction component (8) is used to apply an additional pulling force towards the support base (1) to the counterweight (72) when the included angle between the support arm (51) and the support base (1) becomes smaller. The additional pulling force applied by the traction component (8) to the counterweight (72) is the largest when the included angle α between the support arm (51) and the support base (1) reaches the set minimum.

7. The angle-adjustable solar photovoltaic bracket according to claim 6, characterized in that, The traction assembly (8) includes a traction rope (81) and a spring-loaded automatic winding mechanism (82). The spring-loaded automatic winding mechanism (82) is fixed at the front end of the arc-shaped support guide rail (52). The front end of the arc-shaped support guide rail (52) refers to the end where the included angle α between the support arm (51) and the bracket base (1) continuously increases when the support arm (51) moves towards this end. One end of the traction rope (81) is fixed to the spring-loaded automatic winding mechanism (82) and wound around the spring-loaded automatic winding mechanism (82), and the other end of the traction rope (81) is connected to the counterweight (72).

8. The angle-adjustable solar photovoltaic bracket according to claim 1, wherein A plurality of support columns (53) are provided. The included angle γ between the support columns (53) at different positions and the bracket base (1) satisfies that when the support arm (51) moves, the included angle γ between the corresponding support column (53) and the bracket base (1) decreases as the included angle α between the support arm (51) and the bracket base (1) decreases. The range of the included angle γ between the support column (53) and the bracket base (1) is 30° to 90°.

9. A solar power generation structure, characterized in that, It includes the solar photovoltaic bracket according to any one of claims 1-8. A solar panel (100) is fixed inside the photovoltaic frame (3), and the solar panel (100) converts light energy into electrical energy.

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